The tower in 1947 (above) and in a State Records NSW image with no date (below).

The four towers are costed at more than $13,000 while $3000 has been allocated for Marine Rescue to buy stabilising binoculars.

Emergency evacuation alarms will also be upgraded with an $8000 grant to Surf Life Saving NSW and $5000 will be given to Kiama Council for "aerial inflatable remote shark human interaction prevention".

“This is just one of the measures the NSW Government is putting in place to protect beachgoers from Bega to Tweed Heads,” Blair said in a statement on Thursday.